Treatment of the Mandibular Dental Crowding With and Without Corticotomy Surgery

The use of corticotomy surgery in addition to orthodontic standard treatment could accelerate the treatment. Corticotomy involves vertical interdental incisions of the gingiva and the bone with a very low thickness. Orthodontic appliances are placed immediately after the surgery. This study aims to compare the tooth movement when correcting mandibular dental crowding in two groups of patients: Test group: orthodontic treatment and minimally invasive corticotomy surgery. Control group: standard orthodontic treatment without surgery.

Inclusion Criteria: * The patient is over 18 years old, * The dental crowding of the patient does not exceed 12 mm. The crowding, measured from the right mandibular canine to the left mandibular canine, doesn't require extraction or orthognathic surgery. * The patient has no active periodontal disease and no history of treated periodontal disease. * The patient has good dental hygiene. * The patient has no untreated decay. * The patient accepts the wear of metallic orthodontic materials. Exclusion Criteria: The patient : * is not able to understand the information given by the practitioner for legal, psychological or linguistic reasons. * will have predictable follow-up difficulties. * is pregnant. * has a high risk of endocarditis. * has severe or acquired immune deficiency. * has a malignant condition, an history of radiotherapy in the mandibular region. * has severe hematology, hemophilia, chronic renal failure, autoimmune disease, a condition requiring organ transplantation, poorly controlled diabetes, osteoporosis, rheumatoid arthritis or psychiatric illness. * is under antimitotic, immunosuppressive or high dose corticosteroid treatment. * smokes more than 10 cigarettes per day. * has a systemic disease that affects bone, such as osteoporosis, hyperparathyroidism, or vitamin D deficiency.